Improvement in spring-mattresses



UNITED STATES PATENT OFFICE.

yOHAELES VAN DYEOK, OE NASHVILLE, TENNESSEE.

IMPROVEMENT` IN SPRlNG-MATTRESSES.

Specification forming part of Letters Patent N0. 57,223, dated August14, 1866.

To all whom t may concern Be it known that I, CHARLES VAN DYEOK, ofNashville, in the county of Davidson and State of Tennessee, haveinvented a new and useful Improvement in Spring Mattresses and I dohereby declare that the following is afull,clear, and exact descriptionof the same, reference being had to the annexed drawings, made part ofthis specication, in Which- Figure l is a vertical longitudinal section.Fig. 2 is a top view; and Fig. 3 is a plan, showing the construction ofthe diaphragm.

The same letters refer tO identical parts.

A is a staunch frame, of iron or other suitable material, across whichis spread the springlinen b, made of suitable material. a a are spiralsprings, tapering from both ends tO ward the middle. These springs arepassed through the springlinen b to their middle, being sustained by thefabric through which they pass, and secured in fa vertical position by anet-work of cords, c, extending from the frame, and knotted or otherwiseatt-ached to the outer coil of the spiral springs, as shown in Fig. 3.

The frame and springs thus constructed are inclosed in acasing ofticking, d, suit-ably padded to protect the springs.

What I claim as my invention, and desire to secure by Letters Patent,is-

A spring-mattress constructed with aframe, A, diaphragm b, and spiralsprin gs a a, inelosed in a easing, d, the several parts beingconstructed, secured, and arranged for use substantially as set forth.

CHARLES VAN DYEGK.

Witnesses ALBERT THOMPSON, CHARLES SCHOTT.

